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Table 2 Prevalence and incidence of L. infantum infection rates in areas with different intervention times by the Brazilian Visceral Leishmaniasis Surveillance and Control Programme, Belo Horizonte, Minas Gerais, Brazil

From: Effectiveness of the Brazilian Visceral Leishmaniasis Surveillance and Control Programme in reducing the prevalence and incidence of Leishmania infantum infection

Areas Prevalence 2010 (95% CI) Prevalence 2012 (95% CI) Change (%) Incidence 2012 (95% CI) Person-time incidencea (95% CI)
AI2006 12.9 (10.6–15.6) 23.7 (19.1–28.9) 83.7 14.4 (9.8–20.7) 6.2 (4.0–9.1)
AI 2008 14.7 (12.3–17.6) 25.6 (21.1–30.7) 74.1 21.1 (15.8–27.6) 10.0 (7.2–13.6)
AI 2010 17.9 (14.8–21.4) 17.0 (13.1–21.8) -5.3 11.6 (7.3–18.0) 5.6 (3.3–9.0)
  1. aDenominator: Loss/2 + number of children on follow-up for 24 months for each area analyzed. Incidence rate/100 persons-24 months
  2. Abbreviations: AI2006, area of intervention since 2006; AI2008, area of intervention since 2008; AI2010, area of intervention since 2010; CI, confidence interval